Question

kara is writing a science - fiction story. in the story, earth no longer experiences day and night. to return earth to normal, which action should the heroine of the story take? she should get the sun to travel around earth again. she should make earth start moving around the sun. she should get earth spinning on its axis again. she should get the shape of earths orbit back to normal.

Explanation:

Day - night cycle on Earth is due to Earth's rotation on its axis. To restore day - night, the Earth should spin on its axis again. The Sun does not travel around the Earth (geocentric model is incorrect), Earth already moves around the Sun (revolution) which is not related to day - night cycle, and Earth's orbit shape is related to seasons and not day - night.

Answer:

She should get Earth spinning on its axis again.